Compress Image to 50KB

Get Any Photo Under 50 KB

Shrink photos to under 50 KB for application forms, profile pictures and uploads with strict limits. The best quality that fits is found for you. It’s free, works in bulk, and nothing is uploaded.

Set a maximum file size target. The compressor will automatically find the best quality that keeps files under your target size.

Target File Size (KB)

Make images smaller if neededIf lowering the quality isn't enough, save fewer pixels instead of a blocky photo.

Output format

JPG stays JPG, PNG stays PNG and WebP stays WebP.

Add "_compressed" suffix

Drop images here or click to select

PNG, JPEG, WebP and more

Guide by Ashley Whitehair, web designer at Norwich Website Design

How to compress an image to 50KB

Add your photo
Drop a JPG, PNG, WebP or iPhone (HEIC) photo onto the box above, or click it to choose one. You can add several at once.
Leave the settings as they are
Target Size Mode is set to 50 KB and Make images smaller if needed is ticked. If the form counts a kilobyte as 1,000 bytes, enter 48 instead.
Process and check the result
Press Process, then check the new file size and dimensions under the result. Click its thumbnails to compare it with your original, then download it.

Where you’ll meet a 50 KB limit

50 KB is a strict limit, usually set where photos are only ever shown small:

Application forms for jobs, courses, exams and memberships, which may want a recent photo and sometimes a scanned signature.
ID-style photos for staff passes, student cards and online accounts.
Profile pictures on forums, intranets and learning platforms.

Read the form’s rules closely: some also ask for a size in pixels, or set a minimum file size. Both are covered in the questions below.

Fewer pixels look better than low quality

A full-size photo rarely fits in 50 KB at a decent quality. To get there without shrinking, quality has to drop to around 5% or 10%, where photos break into square blocks and smooth areas turn into bands of colour. Three of our four test photos couldn’t get under 50 KB at all that way, even at 5%.

So this page never goes below 60% quality. When that isn’t enough, it scales the image down from the full-size original instead, keeping its shape, and the result tells you the new size. Forms show photos small, so the missing pixels rarely show; blocks would.

What size your photo ends up

Here’s what four photos came out as at 50 KB. The JPGs were all saved at 64% quality:

Photo	Before	Same as original	Smallest file
Head and shoulders, 1500 × 2000	652 KB	JPG: 684 × 911	WebP: 816 × 1088
Portrait against a plain wall, 4050 × 2379	1.54 MB	JPG: 1273 × 748	WebP: 1712 × 1006
Lake and mountains, 3840 × 2160	1.29 MB	JPG: 978 × 550	WebP: 1186 × 667
Food close-up, 3195 × 2556	1.92 MB	JPG: 605 × 484	WebP: 667 × 534

The head-and-shoulders photo, the usual kind for a form, still came out 684 × 911. Busy photos keep fewer pixels than plain ones, because detail takes more bytes to store.

PNGs, screenshots and transparent images

With Same as original, a PNG stays a PNG. PNG is lossless: there’s no quality to lower, so the only way to 50 KB is fewer pixels, and that can mean very few:

Image	Before	Same as original	Smallest file
Screenshot of a web page, 1920 × 1080	141 KB	PNG: 561 × 316, small text unreadable	WebP: 1920 × 1080, every pixel kept
Photo saved as PNG, 1600 × 1280	3.31 MB	PNG: 156 × 124	WebP: 587 × 470
Product cut-out on transparency, 1890 × 1890	5.61 MB	PNG: 138 × 138	WebP: 529 × 529

So for a PNG, choose Smallest file, which saves a WebP when that’s smaller. WebP keeps transparent backgrounds, but check that the form accepts .webp files first. Safari, like every browser on iPhone, can’t save WebP, so there use the JPG route below.

If the form only takes JPG, convert the PNG with PNG to JPG first, then compress it here: as a JPG, that PNG photo came out 566 × 453. JPG can’t be see-through, so transparent areas turn white; the compressor itself never makes that change.

Personal photos stay on your device

Application and ID photos are personal. They’re compressed in your browser and never uploaded, and the compressed copy has no hidden EXIF data, such as the camera model or the GPS location where it was taken. If the result says your original was kept, that file still has its data: Remove location from photos strips it.

Frequently asked questions

How do I get a photo under 50KB without it looking pixelated?

Leave Make images smaller if needed ticked, as it is on this page. Quality stays at 60% or above, so there are no blocky squares; the photo just has fewer pixels, which doesn’t show at the size forms display it.

The form wants 50KB and a size in pixels. What do I do?

Get the size right first: crop to the shape the form asks for (3:4 suits most portrait photos), then resize with To Dimensions. Compress here last, with Make images smaller if needed unticked so your dimensions are kept.

Why does my Mac say the file is 51KB?

This tool counts 1 KB as 1,024 bytes, as Windows does, but macOS counts 1,000. A result of 50.0 KB here can be up to 51,200 bytes, which Finder shows as 51 KB. If the form counts like a Mac, enter 48 as the target.

A form wants a photo between 20KB and 50KB. Will this work?

Yes, as long as your photo starts out bigger than 20 KB. Results land just under the target, between 46 and 50 KB in our tests, so they’re comfortably inside that range.

Why did my PNG come out so small?

PNG is lossless, so its quality can’t be lowered: to reach 50 KB it can only lose pixels. Choose Smallest file to save a WebP instead, or convert it to JPG first with PNG to JPG.

Does compressing to 50KB keep a transparent background?

Yes. Transparent images are only saved as PNG or WebP, never JPG. Our 1890 × 1890 product cut-out came back 529 × 529 as a WebP, still see-through.

Is it safe to compress an ID or application photo here?

Yes. It’s compressed on your device and never uploaded, and the compressed copy carries no EXIF data, such as the GPS location where it was taken.